SU1460733A1 - Remote control system - Google Patents

Abstract

The invention relates to the field of telemechanics and can be used to control moving objects in an explosive atmosphere. The purpose of the invention is to increase the information content of the device. When a key is closed at the control point of one of the keys, a negative command impulse is sent to the communication line. This impulse is located at the control object, and when this impulse coincides with the gating impulse of the distributor, the corresponding actuation element is triggered. At the same time, a receipt signal in the form of a burst of pulses is generated at the control center. At the control point, this signal is aiming with a high-frequency filter and is fed to the indicator, thereby signaling the activation of the actuator. 2 nl. i (Л с:

Description

I

The invention relates to telemechanics and can be used to control moving objects in an explosive atmosphere.

The purpose of the invention is to increase the information content of the device.

FIG. 1 shows a functional diagram of the device; in fig. 2 - time diagrams of his work for the variant with five control commands.

The device contains a generator 1, a divider 2 frequency, shaper 3 pulses, distributors 4 and 5 pulses, elements AND 6 - 10, switch 11, elements OR 12 - 14, key 15, limiting resistor 16, detector 17, actuators 18 and 19, signal switches 20 and 21 of the actuators, link 22, decoupling diode 23, time selector 24, high pass filter 25, detectors 26 and 27, control keys 28 and 29, polarity changing unit 30 and indicators 31 and 32.

The device works as follows.

In the absence of control commands, the keys 28 and 29 are open, the actuators 18 and 19 are turned off, the signal keys 20 and 21 are open.

The distributor 4 pulses using push pulses (figure 2) coming from the output of the imaging unit 3 pulses, generates a sync pulse

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(Fig. 2SO, gating signals of coands (Fig. 2b) and gating signals of receipts (Fig. 2d), shown in the time position corresponding to the first command. Pulses from the output of the imaging unit 3 pulses through switch 11 are fed to the second input of the OR element 12. Distribute a sync pulse from the output OR of the element 12 OR. The signal from the output of the element OR 12 controls the key 15, as a result of which the communication line 22 is supplied via the limiting resistor 16, which provides intrinsic safety of the communication line. mogon e pulses with a relatively low frequency (FIG. 2), which via a diode 23 provided to temporary selector inputs 24, filter 25 and detector 26. These pulses do not pass through the filter 25, whereby the LEDs 31 and 32 do not radiate.

In the time selector 24, a sync pulse arriving at the first input of the distributor 5 is generated from a signal received from the communication line 22. Using a pulse signal from the communication line through the detector 26. At the input of the distributor 5, gate signals of control commands and receipts, similar to the corresponding signals generated in the distributor 4, which ensures the synchronous operation of both time slot drivers. I When one of the control keys 28 is closed, for example, the command strobe pulse from the output of the distributor 5 through the OR element 24 is fed to the input of the polarity changing unit 30, where a negative command pulse is generated, which enters the link 22. This pulse from the output of the detector 17, which separates the pulses of negative polarity, is fed to the inputs of elements 7 and 8, to the other inputs of which gate signals are sent from the output of the distributor 4. When the command pulse coincides with the corresponding gate, the signal from the output of the AND 7 includes an actuator 18, the signal switch 20 of which connects the receipt strobe signal from the output of the distributor 4 to the input of the OR element 13, the output of which controls the switching

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reader 11, as a result of which the relatively high-frequency pulses are; Rotor 1 through the element AND 6, the switch 11, the element OR 12 and the key 15 arrive in the form of a high-frequency packet, occupying a temporary position corresponding to the command given, to the communication line 22, FIG. Figure 2e shows the signal. On link 22 in the case of the transmission of the first, second and fourth commands and the first and fourth receipts. High-frequency receipt signals pass through a high-pass filter 25 to the input of detector 27, distinguishing their envelope. When these pulses coincide with the corresponding receipt strobe, the incoming receipt strobe arriving from the 5-time interval shaper code, the signal from the output of the AND 9 element enters the indicator 32, signaling the execution of the command.

 When any other control key is closed, the device operates in the same way.

The number of control commands and, respectively, receipts is N-2, where N is the ratio of the frequency of the advancing pulses to the frequency of the clock pulses.

Claims (1)

Thus, the device provides simultaneous transmission over a two-wire communication line of an arbitrary number of control commands and corresponding acknowledgment signals. Invention Formula A remote control device comprising control keys, a decoupling diode, the anode of which is connected to the first wire of the communication line, the cathode of the connecting diode is connected to the input of the high-pass filter, the output of which is connected to the input of the first detector, a second detector, indicators, on the control object, a generator, the output of which is connected to the input of the frequency divider, to the first input of the element I, the output of which is connected to the first input of the switch, the power source is connected to the signal input of the switch, the course of which is connected through a limiting resistor to a first wire link, actuators, characterized in that. In order to increase informativity, a temporary selector, an OR element, a pulse distributor, a polarity changing unit, AND elements, a cathode of the coupling diode are connected to the input of the second detector and to the first input of the temporary selector, the output of which is connected to the first input of the pulse distributor , the first outputs of which through the corresponding control keys are connected to the inputs of the OR element, the output of which through the polarity reversing unit is connected to the anode of the decoupling diode, the output of the first detector Ora is connected to the first inputs of the elements And, the output of the second detector is connected to the second input of the pulse distributor, the second outputs of which are connected to the second inputs of the corresponding elements And, the outputs of which are connected via indicators to the second input of the time selector and to the second wire of the line connection, the impulse distributor, detector 0 five 0 five the first and second IGO elements, the elements AND signal keys and the pulse generator, the output of which is connected to the second inputs of the switch, the element AND, and the input of the pulse distributor, the first output of which is connected to the first input of the first OR element, whose output is connected to the control key input, the first wire of the communication line is connected to the first detector input, the output of which is connected to the first inputs of the AND elements, the second outputs of the pulse distributor are connected to the second inputs of the corresponding elements And, the cat outputs The ports are connected to the inputs of the respective actuators, the third outputs of the pulse distributor are connected via the respective; Signal keys to the inputs of the second OR element, the output of which is connected to the third input of the switch, the output of which is connected to the second input of the first OR element, the second wire of the communication line is connected to the second input of the detector. Fi.3.2